Selectbar Designer error message

Hello Radzen Team,
i run into a Problem with the Designer. I defined a Selectbar and as soon as i set it to multiple the designer shows

Other Code/Definitions:

    IEnumerable<int> _DienstleistungsArten;
    protected IEnumerable<int> DienstleistungsArten
    {
        get
        {
            return _DienstleistungsArten;
        }
        set
        {
            if (!object.Equals(_DienstleistungsArten, value))
            {
                var args = new PropertyChangedEventArgs(){ Name = "DienstleistungsArten", NewValue = value, OldValue = _DienstleistungsArten };
                _DienstleistungsArten = value;
                OnPropertyChanged(args);
                Reload();
            }
        }
    }

Load event:

   protected async System.Threading.Tasks.Task Load()
    {
        artikel = new Trent.Models.Trentdb.Artikel();

        var trentdbGetArtikelartsResult = await Trentdb.GetArtikelarts(new Query() { Filter = $@"i => i.aktiv == @0", FilterParameters = new object[] { true }, OrderBy = $"Text asc" });
        getArtikelartsResult = trentdbGetArtikelartsResult;

        DienstleistungsArten = new int[]{};

        Initialize();
    }

That all seems right to me but the error message in Designer resists. The App run fine.
Any suggestions?

Kind Regards
Thomas

Hi @Thomas,

I've tried the same however the designer worked properly:


I found the problem. The "multiple" Selectbar were fromerly a "single" selectbar and the value was an int.
I changed all... Property from int to int[][{}, ect. but in the page json the "valuetyp" is "int" and doesnt change no matter what i do in the designer. Except deleting the Selectbar, set it to "multiple" and do it all again.

FYI:
image

I have deleted the json entry "valuetype" and now the designer error is gone.

image

Thomas